Glove-sewing machine



F. G. HOTKA.

GLOVE SEWING MACHINE.

APPLICATION FILED FEB- |7| |9l9| 1,348,176. Pat ntd A g- 3,1920.

V 3 SHEETS-SHEET 2- INVENTQR F. G. HOTKA. GLOVE SEWING MACHINE.APPLICATION FILED FEB- 17, 1919.

3 SHEET$- Patented Aug. 3, 1920.

SHEET 3 ATTORNEYS UNITED STATES and other gloves wherein the wearermakes considerable use of the palmand insidejsurface of the fingers ofhis. gloves,.'that said -palm and-inner surface of theglove fingers .Inprov d- I "view of'a moccasin type. ofglove finger.

beas free aspossible of seamsj 7 ing a glove of this form manufacturershave adopted what istermed a moccasin'dtype of glove In such a glove thefinger seams are on thebacks of the fingerssojthatthe under surface of.said.fingersis'sn1 ooth.

,gHeretofore gloves ofthisgeneral character have been almostentirelylmadeby hand asjthe ordinary type of leather sewing machine.cannot perform" thefanecessary functions. It ,istherefore the princlpalob ect of' the present invention to provide .an attachment for astandard type ofsewing machine which willpermit lovesof thislnature tobe manufactured 111110 more rapidlyrand -ticularly .at'r'less cost thanby the old. hand, methods.

vention; resides incertain; novel. features of construction, combinationand arrangement of parts whichwill be hereinafter more par- 1 describedand explained and shown 7 in the accompanying drawings whichillusf'trate one embod ment. of the invention, it

being; understood, however, that'fv'arious changes may be-madein-the'form and pro- -portion of the several" parts o-f theiattach-"ment without-departingfromnthespirit of gthelinyention. r

1111111856. d n s,

. Figure 1 represents a; vertical. sectional viewof astandardsewing"machine having my invention appliedthereto.

stantially on the plane foftheline of '55iyiew on the planeoftheline33'of Fig. 1.

I Specificationot Letters ratena t t A ienation fil ed rbiuari 17. 1919.Serial No. 277 .506.

pieces of material stitched" togethezj the with my invention themoccasin type isto be made.

fby'these shafts 5 and 6 and is jWiththis general object in view the,inleather,jor other material, A be of greater Fig; Q-isa horizontalsection takenjs ub- \PFATFENT; OFFICE- ,drBANKencm,wrsconsm. 1" Aenovnjsnwme MACHINE.

Au 3; 19 2i).

' Fig. 3 is a detail sectional view on the line 3 3 of Fig. '3. i 7 '1Fig. 4 is a view similar to Fig. 3 taken on the linedi of Fig. 1.

F lgs. 5, 6 and 7 are semi-diagrammatic views showing the several stepsin the operation of my improved machine on two pieces of leather or thelike. r I

Fig. 8 is a fragmentary edge "iew of two stitching operationv havingbeen performed on a machine manufactured in accordance Fig. 9 is a planview of a portion of the finger blanks from which a glove finger of Fig.10 is a plan viewof'one end ofs'uch a finger, the material being shownin Fig. 9.

Fig. 11 is a detail longitudinal sectional Referring more particularl tothe several figuresof the drawing it benotedthat 1 the standard formofsewing machine with which my invention is .used consistsessengitudinally extended main drive shaft 5', and

the similarly positioned rock shaft 6; 1 My improved mechanism; isoperated entirely V largely posi tioned beneath-the overarm f Sinceit'is essential in the moccasin type of glove finger that the innerblank of size than the outer blank B,.it is-necessary I that the end orrounded portion of theffirst mentioned blank have its edge. tuckedorgathered so as to bring the said edge 'into position to be stitched tothe corresponding .edge of the other blank The invention illustrated isadapted to simultaneously form these tucks in the blank A and sew thetwo blanks A and B together.

Therefore in carrying out the invention 100 and 6 asfheretofore setforth actuates this tucker 7 to intermittently engage it with. the

' lower blank A to produce a successi've row of tucks, said tucker beinglocated between the twoblanks A and B as clearly indicated in Figs. 5, 6and 7. The tucker 7 is carried by a depending arm which in turn ismounted on-one end of an intermediately pivoted oscillatory rod 11. Thisrod 11 is slidably positioned in a pair of spaced bearings 12 of a yoke13, the latter being pivotedto a support 14 mounted on the table 1.

The 1 end of the rod 11 opposite to that which carries the tucker 7 "isadapted to be operated upon by one arm 15 of a bell crank,

said bell crank being formed of this arm 15.

' a short rock shaft 16 journaled in the bearing of a bracket 17, and arod 18.

he upper end of the rod-18 carries a roller 19 for operation in a camgroove 20 of a rotary cam 21, the same being keyed to the shaft 5. FromFig.3 it will be seen that the cam groove 20 is of suchshape that therock shaft 16 will be oscillated to cause the raising andalowering ofthearm 15 and the consequentrocking of: the rod 11 and the A coil spring 22is secured on the table 1 and has one arm 23 extended beneath the rod 11to cause'a quickupward movement of the.

adjacent end thereof with a resulting rapid downward movement of thetucker 7.

While the tucker isengaged with the work material it is desirable thatthe same be moved approximately in a horizontal plane or'relativelyparallel to the surface of the Work-table This particular movement isprocured by the oscillation of the rod 11 which is o erated indirectlyby the rotation of the sha t 5; It might be here pointed out that theshaft 5 carries a seeond rotary cam 24 in the cam groove of which isdisposed a roller mounted on the free end of the lever 25, the latterbeing connected intermediate its ends with the rock shaft 6 by aconnect-' ing)member 26.

epending' from the intermediate portion of the rock shaft 6 and fixedthereto so as to be oscillated thereby is a stem 27, the free end ofwhich is adjustably connected with a lever 28 intermediate the ends ofthe latter,

1 and the lower end of this lever 28 is pivoted to a support 28 carriedby the table 1. A

rod 29 is adjustablyfixed to the rod 11 ad-' xcoupling members 31 areslidably adjust- ..ableonthe lever 28 and rod 29 respectively wherebythe amount of oscillation of the rod 11 may be varied, it being obviousthat the oscillation .of the rock shaft6 is trans- I Jmitted through thestem 27, and the other elements just enumerated, to said rod 11.

Referring to Fig. 3 it will be noted that moved downwardly. M

the link 30 is also adjustable in length. In other words it is made intwo sections, one

of which carries a'threaded stud 32 for engagement in the threadedsocket 33 'of the other" Thus by disconnecting the link 30 from thecoupling member 31 by removing the screw 34', stud 32. may be screwedinto or out of the socket .33. V V

With the mechanism'thus far described the glove finger blanks willbeproperly associated at the same time and irrespective of the usualoperations of the 'a'wl 8 and the needle 9; However, it is "desirable.at times to move the tucker away from the Work ma terial so 'as torender it inoperative. For this purpose I' have provided a canimember 35-pivoted to one 'of the'bearings 12-of the yoke 13 and operable by ahandle 86.

WVhen the handle is moved in one direction this cam member 35 engagesthe lower connecting portionof the rod 29 and moves it away fromsaidbearing 12. This movement also causes the rod 11 to shift longitudiJnally and away from the work-'m'a terial.

Uponmovement of the handle 36 in the op posite'direction the rod 11 isreturned to lts original position by the tension of an ex- 'pansilespring 37. The hereinbefore described connection between thetwoparts ofthe link 30 is also adaptedtopermit the rod 9 29 to be shifted by thecammember 35 with out .deranging the other arts of the connec- 'tionbetween the stem2 and the rod 11.

From 'thefforegoing description it will be seen that the tucker?is'oscillate'd in two directions, that is' to say in planes atapproximately right angles to eachother. The

,vertical movement is obviously caused by the rocking of the rod 11,while the substantially horizontal movement is occasioned bythe'p'artial rotation of said rod 11. Whenever the tucker ismovedsubstantially horizontally it is engaged with the blank A of the glovefinger and tends to move the same 7 toward the awl 8 and the needle 9,thus 1 causing the puckering 'or gatherin' of'the edge of the materialas is clearly 's own in Figs. 5, 6, 7, and 10. -When the limit of travelof the tucker ina horizontal direction is reached thesame' is raisedupwardly and rearwardly to return it to its original "po'siv tion, or tothe position occupied before it is I Since this machine does awayentirely" with hand labor it is believedthat it will be obvious that thecost of manufacture will be greatly lessened whilethe perfection ofworkmanship will be materially increased. Also in view of the fact thatthe mecha nism may be used on types of machines now generally employedin'leather working establishments, the'cost of gloves of this characterwill be further decreased.

I claim: K

1. In a machine of the class described,

means for forming tucks in flexible material comprising a rock shaft, atucking arm carried by the shaft, means for oscillating the rock shaftonits axis, and means for oscillating the rock shaft in the plane of itsaxis, said oscillations being simultaneousto swing the tucking arm intwo directions at the same time.

2. In a machine of the class described, means for forming tucks inflexible material comprising an oscillatory arm, means for oscillatingthe arm Vertically to intermittently engage the flexible material, andmeans for oscillating the arm substantially horizontally when the sameis engaged with said material.

3; In a machine of the class described, arod pivoted intermediate itsends, a tucking arm carried by the rod, means for rockingv the rod tomove the arm toward and away from the work material, and means foroscillating the. rod when the arm is engaged with the work material, andmeans for Varying the degree of oscillation to modify the size of thetucks.

4. The combination with a sewing machine, of a rod pivoted intermediateits ends, a tucking arm carried by the rod and disposed adjacent theneedle of said machine, and means ,for rocking the rod to move the armtoward and away from the work material, and means for oscillating therod when the arm is engaged with the work material to tend to move saidmaterial toward said needle. 7

The combination with a sewing machine, of a rod pivoted intermediate itsends,

a tucking arm carried by the rod and disposed adjacent the needle ofsaid machine, and means for rocking the rod to move the arm toward andaway from the work material, and means for oscillating the rod when Intestimony that I claim the fore-' going I have hereunto set my hand atMilwaukee, in the county of Milwaukee and State of Wisconsin.

I FRANK G. HOTKA.

